On Thu, Jan 24, 2002 at 02:08:39PM -0500, David Chin wrote:
> > 
> > If you don't trust POSIX permissions, well, it's time to give up on *NIX 
> > completely, and reformat and install NT. 
> 
> Um, then why are passwords in /etc/shadow encrypted?

Everything in the shadow group has to be able to read that file. There
shouldn't be a whole lot of programs that need to do that, but it's
more than in the case of Courier.

Also, it allows the root user to look at the /etc/shadow file without
revealing users' passwords. This adds some security if there are users 
that use the same passwords on all their machines.

Neither of these arguments applies to the webadmin password. It only
needs to be readable by single user, and presumably that user is the
one who created the password in the first place.

If a program on your machine is running as root and is somehow tricked 
into providing others with read access to random files on the machine, 
the plaintext password could be a problem. Is the liklihood of that 
happening enough to warrant the extra security? I don't know.

m.



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